【作者】 冯一飞； 魏长平； 管宏伟；

【Author】 FENG Yi-fei WEI Chang-ping GUAN Hong-wei (College of Material Science and Engineering,Changchun University of Science and Technology,Changchun 130022,China)

【机构】 长春理工大学材料科学与工程学院；

【摘要】 不同沉淀剂下采用均相沉淀法制备出掺杂不同金属离子(K⁺,Mg²⁺,Ba²⁺)的 Y₂O₃：Eu³⁺荧光粉。通过 XRD、IR、激发与发射等技术研究了材料的结构与发光性能,考察了沉淀剂、掺杂的金属离子种类对 Y₂O₃：Eu³⁺发光材料的结构和发光性能的影响．结果表明：用尿素作沉淀剂制备的发光性能明显强于用草酸作沉淀剂的 Y₂O₃：Eu³⁺荧光粉．其中,在草酸系列中,同时掺杂 K⁺离子能显著增强 Y₂O₃：Eu³⁺的发光强度,而掺杂 Mg²⁺,Ba²⁺离子则会减弱其发光强度；而在尿素系列里,掺杂离子都会增强样品的发光强度。更多还原

【Abstract】 Luminescent materials of Y₂O₃:Eu³⁺powder with different metal ions-doped(M:K⁺,Mg²⁺,Ba²⁺)were prepared through different precipitators by precipitation method and characterized by XRD,IR and excitation and emission spectra..The influence of structure and luminescence properties of Y₂O₃:Eu³⁺nanocrystallites with different co-dopants have been investigated.The result shows that the luminescence properties of Y₂O₃:Eu³⁺are well by using urea,and in the oxalic acid series co-doping K⁺ion can obviously increase the luminescent intensities of Y₂O₃:Eu³⁺,but co-doping Mg²⁺, Ba²⁺ions will decrease the luminescent intensities of Y₂O₃:Eu³⁺;in the urea series,K⁺,Mg²⁺,Ba²⁺ions all can increase the luminescent intensities.更多还原